A pair of elongate flexible curvilinear shafts are adapted at one end thereof to be secured to a surgical operating table. Detachably securable to the free end of each shaft is a pair of mutually arcuate straps which receive and hold a foot to support a patient's legs during certain surgical procedures. Manually operative detent means carried by the free end of the shaft and operatively associated with the straps provide for selective restraint or release of the foot.